Function Blocks
8OR Function Block
Revision 11 HC900 Hybrid Control Designer Function Block Reference Guide 247
2/07
8OR Function Block
Description
The 8OR label stands for the inclusive OR (8 Inputs) Boolean logic function.
This block is part of the
Logic and Fast Logic categories.
Function
Turns digital output (OUT) OFF when inputs X1 through X8 are off, thus:
• If input X1 or X2 or X3 or X4 or X5 or X6 or X7 or X8 is ON, then: OUT = ON.
• If all inputs are OFF, then: OUT = OFF.
Input
X1
= First digital signal
X2 = Second digital signal
X3 = Third digital signal
X4 = Fourth digital signal
X5 = Fifth digital signal
X6 = Sixth digital signal
X7 = Seventh digital signal
X8 = Eight digital signal.
Output
OUT
= Digital signal controlled by status of input signals
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